SOLUTION: Solve: Sin^4 x - sin^2 x

SOLUTION: Solve: Sin^4 x - sin^2 x - 3sin^2 x + 3 = 0

Question 970569: Solve:
Sin^4 x - sin^2 x - 3sin^2 x + 3 = 0
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Solve: [0, 2π)
Sin^4 x - sin^2 x - 3sin^2 x + 3 = 0

..
sin^2(x)-3=0
sin^2(x)=3
sinx=�√3 (reject,(-1 < sinx < 1))
or
sin^2(x)-1=0
sinx=�√1=�1
x=π/2, 3π/2

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